meson: sync warnings flags with -good

Add more warnings flags and disabled unused variable warnings if gst
debug system is disabled.

Copied from gst-plugins-good/meson.build
This commit is contained in:
Guillaume Desmottes 2019-03-25 16:01:48 +01:00
parent fbd6efcdee
commit e4db5d348a

View file

@ -321,6 +321,66 @@ endif
omx_conf_dir = join_paths (get_option ('prefix'), get_option ('sysconfdir'), 'xdg')
cdata.set_quoted('GST_OMX_CONFIG_DIR', omx_conf_dir)
warning_flags = [
'-Wmissing-declarations',
'-Wredundant-decls',
'-Wwrite-strings',
'-Winit-self',
'-Wmissing-include-dirs',
'-Wno-multichar',
'-Wvla',
'-Wpointer-arith',
]
warning_c_flags = [
'-Wmissing-prototypes',
'-Wdeclaration-after-statement',
'-Wold-style-definition',
'-Waggregate-return',
]
have_cxx = add_languages('cpp', required : false)
if have_cxx
cxx = meson.get_compiler('cpp')
endif
foreach extra_arg : warning_flags
if cc.has_argument (extra_arg)
add_project_arguments([extra_arg], language: 'c')
endif
if have_cxx and cxx.has_argument (extra_arg)
add_project_arguments([extra_arg], language: 'cpp')
endif
endforeach
foreach extra_arg : warning_c_flags
if cc.has_argument (extra_arg)
add_project_arguments([extra_arg], language: 'c')
endif
endforeach
# Disable compiler warnings for unused variables and args if gst debug system is disabled
if gst_dep.type_name() == 'internal'
gst_debug_disabled = not subproject('gstreamer').get_variable('gst_debug')
else
# We can't check that in the case of subprojects as we won't
# be able to build against an internal dependency (which is not built yet)
gst_debug_disabled = cc.has_header_symbol('gst/gstconfig.h', 'GST_DISABLE_GST_DEBUG', dependencies: gst_dep)
endif
if gst_debug_disabled
message('GStreamer debug system is disabled')
if cc.has_argument('-Wno-unused')
add_project_arguments('-Wno-unused', language: 'c')
endif
if have_cxx and cxx.has_argument ('-Wno-unused')
add_project_arguments('-Wno-unused', language: 'cpp')
endif
else
message('GStreamer debug system is enabled')
endif
configure_file(output : 'config.h', configuration : cdata)
subdir('config')